Machine foe



`JOHN THGMPSON, F MARBLEHEAD, AND A. Si. MOORE, oF LYNN, MASSACHUSETTS.D

`lvrAoIicIlmFoR CUTTNG lBoo'l` ANDsHoE SOLES.

Specification of Ijetters Patent No. 11,500, dated .August 8', 1854;Antedated Fbruy 8; 117854.A

i To till iutomt may' c'o'oewt:

l Be itkio'wf that We, JoHN TolvIPsfoN, of Mthleheed, `in the county ofEssex and l Corn' s Mooie Lynn, in the coiihty end Commoni wealthelforeeeid, hete ihvehted eeitetiln` new adheefhl Iiipo'fents Aiii`Mit'czhine foi' Gttifhg Oiit the Solee of Shoes Boote; and weherehydeclere the following to he 'e fell, elehit, ehdeizeetfdeecrptionof the sei-he,

reference being had to the annexed dttvf il mki Fett of thiecpeciiieetich, in

` Fi 1 isf anlsoihetric View of the ims Fie. is eh ehh view of the Fig ew f the difewihge `To ehehie otheie 'Skilled iiithe ift to meh-e feci`to the khivce, o, the troiigh which ece l i lee they ciechi Ich? hy thevehhc hereafter described l i hwei1th of Mceeechceette, and A- Sf echtview, Figlie eecctich thiifciigh the l Pto'ri of the `ihechihe end theframework `of the machine, B the teme iipori which the stripe ofleather' j ffhfduof which is etteehed to the `sliding; frame' K. Asthe'sht `D s mende to 'evolve,

acvettcal motion Tip eind downf's thu come munieeted to the treme 1i.`andjthejptififte' eonneeted therewith which will now he deseiibed. v i

M, is the cutter heed seeuedto the ehft e whieh hee its heefihge ihthelvibhetihg theme K, eiid is eeeii dotted lee Fig. 3, whefe it pessesthiough the eyliiideh to be hereafter referred to; The gl are ouved insuch `et hoaliei"` thi'tt oheYo'f them` slfflttll` oil'm one side of asjol'ialidtle other the other* Side;4 the cutte head bei-iig forced tomake e` hielt revolution feeol time {ingf beti- P the position 4of thereet being lrgillated by `tbe Scale upon its hft Wh'eh mede feet to thebei `l? by the thuihh To theber P ie'lcorhrhunieeted i vibietoicymotion@ .uponxte points ofeilepeh Asion Z, each time the knive'sAdesoelid iothe' purpose of ellowihg the eolee to fell ee they`mereetatioheryehmsli rojeotinglfitoi the; f; `matin rem'eofthe machinewhich oerifythe gege heel?. l

g i e ic e coiled spring-which teh-de cchfetehhy 'toretithf the gege irlthe position yrepeeenttf'd `iii `Fig;` 1, ready to iteeeve the ehd` ofthe they are bitought lip by the spring and the perte more immediatelyAeoiifieeted` *hotels-f i lhead as seen in Figs. l and 3.

cylinder seen detached in Fig. T3, andhaving a pinion t upon its innerend. This cylinder lits over one end of the shaft e of the cutter a is aflat spiral spring one end `of which is secured to the interior of thecylinder f and embracing theshaft e. If now when the cylinder is inplace uponthe shaft e, it be turned in' one direction the spring bindsupon the shaft and the latterA is thereby rotated. When v however ythecylinder is turned in the opposite direction fthe spring relaxes itshold ,L. upon the shaft which then remains at rest. i Av vibratingrotary motion is communicated to the cylinder f in the following manner.R is a toothed sector having an arm w which receives a vibratory motionfrom the treadle A H through the connections T, V, as seen in Fig. 1. Arotary vibratory motion is thus communicated to the pinion t which gearswith the sector R, and the shaft e and cutter head receive anintermittent rotary motion,

and in order that these may be arrested at face in which are cut twoslots e, e.

the precise instant when the knife is in a position to make a cut, thefollowing device is lresorted to. m is a disk secured to the shaft ehaving a ange y upon its inner sura, Fig. 3, is a at steel springsecured to the sliding frame Kat b Aand'moving up and down therewith. cis a tooth or latch attached to the spring a; in such, a position thatas the diskw revolves with the shaft e and cutter head, the tooth cfalls into one or the other of the slots or notches z, and thus theshaft is heldA st-ationary until such time as the toothA c is withdrawnfrom the y notch 2,

f which is accomplished in the following manner. d is `a-'stationary campiece attached tothe main frame of the machine immediatelyv beneath thespring a and in such a position that as the frame K descends the lowerend of the spring is forced in and the tooth y, tooth c upon ythe springa.

is thus withdrawn from the slot e. `This is effected at the last instantof the descent of Atheknives ywhich are thus left free to revolve, thetooth. of resting upon the flange y `until as the disk revolves it againfalls into the other slot z. The operation of this part ofthe mechanismis as follows: As the treadle descends, the cylinder f slipsk freelyupon lthat the knives commenced turning before they were released fromthe gutter which is very soon wornbeneath them into the bed of themachine, and thus considerable unnecessarystrain and friction wasproduced. To remedy this evil we.have adopted the following device whichconstitutes our second improvement.

By reference to Fig.V 2 it will be seen that the crank G (which carriesthe pitman I of the treadle H) and the crank pin d are relatively soplaced upon the shaft D that the pin d arrives at the lowest point ofitscir- Acuit, while the crank G is still descending,

and consequently 4the frame which :carries the cutters commencesv toascend before the. lknives begin to turn, the rotary motion of thelatter being derived directly from the treadle through the connectionsT, V, etc. The knives are thus entirely free from the bench beneathbefore they begin to rotate.

and all unnecessary strain and friction are avoided. i Y y Our thirdimprovement has forit-s object the insuring of the ascent of the knivesand.

treadle whether the machine be worked fast or slow, or in whateverpartofthe operation ;-v Y

'the machine bestopped, soy that they may at all times be in a positionto be operated and so that the crank Gr shall never be'left upon itscenter or at the lowest point of its circuit, or .indeed in any otherpositionin4 which it cannot be instantaneously started by pressure uponthe treadle. wheel upon the shaft D which if suiiiciently heavy would beperfectly competent to raisefthe treadle and carrying frame K so long asthe machinery was in rapid motion,

but where it is constantly stopped l,and started and never worked at ahigh velocity, it is evident that the weight of the carrying E is afly.

rob

frameand treadle would depress the crank yinto itslowest positionwhenever the ma;` chine was stopped and it could not then be started bythe treadle alone. To obviate this inconvenience I have so loadedthe flywheel with the weight A that the combined weight of the t-readle andframe K shallbe overbalanced, so that the machine, shall al# ways beleft in the position indicatedfin Figs. 1,2, and 3, ready to be againstarted by pressure upon the treadle. v .v

Our fourth improvement consists in af method of hanging the knives inthe cutter head, sothat lthey may be instantaneously.l adjusted withoutloosening the screws by;

which they are confined, for the purpose of narrowing orv widening thetoesv and Vheels as required by the different sizes of the soles; lTheknives a a are confined betweencurvedclampsd e which clamps are securedto the cutter head in the following manner, f arel u mortises throughthe cutter head inwhich,`

slide boxes g the motion of which is governed by the screw h.

groove in the end of the screw to confinejt to the box g.

A pin, seen in. dotted lines in Fig. 4 passesV throughga Through holesin thesey las boxes (Figs. 4 and 7 )i pass the screws z" which confinethe cutter clamps together.

\ It is evident therefore that as the `boxes g. `are moved by the screwsL, the knives will also move with them. And in order that the toes andheelsof the cutters may move in correspondence with each other, theknives with their clamps are pivoted to the cutter head in their center,the pin k', projecting` from the cutter head, entering a suitable holein theclamp. From the: above `it is evident that the knives may beadjusted for differing widths oftoe and heel without loosening thescrews which confine them to the cutter head. i

What we claim as our invention and de-` sire to` secure by LettersPatent isl. The combination of the sector and pinion with the cylinderand clamp spring, op.- erating substantially in thev manner describedand for the purpose set forth.

2. Ve do not claim the mere adjustment of the crank Gr, and eccentricson the shaft D. But what we do claim is"communicat ing both a verticaland an intermittent rotary motion H to the knives, from the coni `3.Passing the screws which confine the knives `to the cutter head throughthe sliding `boxes g', in the manner described `for the purpose ofadjusting the knives to different widths of toe and heel withoutloosening the screws which conline them to the cutter head.

JOHN THOMPSON. A. S. MOORE. Witnesses:`

J. R. NEWHALL A. F. HOLMES.

